Pattern plate with vibrator securing means



March 17, 1931. G. B. PICKOP 1,796,394

PATTERN PLATE WITH VIBRATOR SECURING MEANS Filed Cot. 16, 1929 Patented Mar. 17, 1931 UNITED STATES PATENT OFFICE GEORGE B. PICKOP, OF NEYV HAVEN, GONNECTIGUT, ASSIGNOR 'l'O MALLEABLE IRON FITTINGS COMPANY, OF BRANFORD, CONNECTICUT PATTERN ?LATE WITH VIBRATOR SECURING MEANS Application filed October 16, 1929. Serial No. 408,089.

This invention relates to means for securmg a vibrator to a pattern plate or pattern frame and relates particularly to the pro- VlSlOIl of means for securing a vibrator to the device by which the patterns are carried, so that the vibrator will be rigidly secured and will have no tendency to shake itself loose or to destroy the securing means.

When a vibrator is secured to a pattern plate or frame or other device for holding the patterns, the plate or frame is usually provided with an opening and the vibrator provided with an ear or lug also having an opening designed to be placed in register .with the opening 011 the pattern plate. A bolt is then passed through these openings to secure the vibrator to the plate. It will be apparent, however, that in such a construction the blow of the vibrator in one direction reacts against the bolt, so that in time the bolt is either destroyed or becomes loose, with a consequent loss of vibration in the plate or frame.

An object of the present invention is the provision of means for securing a vibrator to a pattern holding device so that there will be no tendency for the vibrator to become loosened in use.

Another object of the invention is the provision of means for securing a vibrator to a pattern plate or frame, so that the blows of the vibrator will not be borne by the securing means, and hence, the latter will have no tend- M ency to be loosened when the vibrator is in use.

A still further object of the invention is to secure a vibrator to a pattern plate or frame by means of the provision, in a part of the P pattern plate or frame, of an opening within which the vibrator may be mounted so that the ends of the vibrator casing fit closely against the edges of the opening.

A still further object of the inventlon is the provision, on a pattern plate or frame, of an extending ear or lug provided with an opening of a length equal to that of the vibrator, whereby, the vibrator may be mounted 1n the opening with its ends abutting closely against the edges thereof and the blows of the vibrator borne by the ends of the ear or lug in stead of by the means securing the vibrator to the plate.

To these and other ends, the invention consists in the novel features and combination of parts to be hereinafter described and claimed.

In the accompanying drawings,

0 Fig. 1 is a plan View of a pattern plate or frame, provided with means embodying my invention, for securing a vibrator thereto;

Fig. 2 is a sectional view on line 2-2 of Fig. 1; I

Fig. 3 is a fragmentary plan view of a portion of a pattern plate or frame showing a modified form of vibrator securing means;

Fig. 4: is a sectional View on line 4.4 of Fig. 3. i

' To illustrate a preferred embodiment of my invention, 1 have shown in a somewhat diagrammatic way a device 10 for carrying patterns for which molds are to be made. This device may be a pattern plate or an open frame, usually called a pattern frame, within which the patterns may be mounted or, in fact, any device to which patterns may be attached. Rigid with the pattern frame is a lug or car 11, which in this instance projects from one corner of the part 10, and as shown in Fig. 1, is formed integrally with this part.

The lug 11 in this form of my device is in the same plane as the plate or frame 10 and is provided withan opening 12 substantially rectangular in shape, the opening sub stantially corresponding in size to the size of the vibrator to be used. The lug 11 is provided with openings 13 and 14, one of which is disposed adjacent each end of the opening 12.

While the particular form of vibrator used is not of primary importance in connection with the invention herein claimed, I have shown a vibrator 15 of hexagonal cross-section provided with end heads 16 and 17 upon which are longitudinally projecting lugs 18 and 19.

As shown particularly in Fig. 2 the vibrator is mounted within the opening 12 so that the lugs 18 and 19, lie fiat-wise on those portions of the lug 11 adjacent this opening and bolts 20 and 21 may then be passed through lugs 18 and 19 and through the openings 13 and 14 to secure the vibrator in place. As shown in this figure of the drawings, the portions 22 and of the end heads of the vibrator below the lugs 18 and 19 fit closely against the ends of the opening 12 so that the blows of the piston 24- upon the end heads are supported by these portions of the ear and lug 11.

It will be apparent that when the vibrator fits snugly in L116 opening of the lug 11 with the heads bearing against the ends of this opening, the force of the blows of the piston will not be borne by the bolts or other securing means 20 and 21, but will be borne by the end portions of the opening of the lug 11. The vibrator is thus rigidly secured at both ends against a portion of the pattern plate or a part i 'd with the psi-tern plate and as a result there is no danger of the vibrator be coming loose and play developing between the vibrator casing and the pattern supporting means to which it is attached.

and 4 of the drawing, I have In Figs. 0 shown a construction similar to Figs. 1 and 2 except that the ear or lug 11 is inclined at a substantial angle to the plane of the pattern plate or frame 10. As shown this angle is substantially 15 but va 'iation in this respect may be resorted to if desired. The vibrator shown in connection with this form of the invention is of the springless type and when it is mounted on an angle to the horizontal as shown, the piston will always tend to remain at the lower end of the cylinder and it will, therefore, be self-starting without the need of employing a spring to urge the piston toward one end of the cylinder when the device is not in operation.

It will be apparent the vibrator is so disposed that its longitudinal axis lies at an acute angle with respect to the longitudinal af-iis of the pattern plate: a; a result the blow of the vibrator piston will be in a direction at an acute angle to both the longiudinal and transverse axis of the plate and will cause the least possible distortion of the mold. By securing the vibrator to the plate in such a manner that it is embraced by a part of the )late or a part ri id with the plate, the piston blows will have equal effect in either direction and the likelihood of the vibrator becoming loose will be eliminated. in addition the strain is removed from the securing bolts and at the same time a simple and effective method of securing the vibrator to the pattern plate is provided.

lVhile l have shown and described some preferred embodiments of my invention, it will be understood that it is not to be limited to all the details shown, but is capable of modification and variation within the spirit of the invention and the scope of the appended claims.

What I claim is 1. A pattern plate or frame having an elongated opening formed through an integral part thereof and a vibrator mounted in said opening, said opening being shaped to lit the vibrator body so that the ends of the vibrator fit snugly against the ends of the opening, and said vibrator having a longitudinally projecting lug at each end thereof, and said lugs projecting over the edge the opening to overlie the material of the plate and being secured thereto.

A pattern plate or frame having an integrally formed lug projecting outwardly therefrom at one corner thereof, said lug being provided with an opening extending therethrough, and a. vibrator mounted in said opening, said opening being shaped to fit the vibrator casing so that the ends of the vibrator fit snugly against the end walls of the openin and said vibrator being provided at each thereof with a longitudinally extending nd said lugs overlying the edges of said and being secured to the lug on the pla e.

In witness whereof, I have hereunto set my hand this lath day of October, 1929.

GEORGE B. PICKOP. 

